South Dakota Dams
2,541 dams tracked by the National Inventory of Dams
Total Dams
2,541
High Hazard
86
3.4%
Poor / Unsatisfactory
34
Average Age
68 yrs
Hazard Classification
High86 (3.4%)
Significant149 (5.9%)
Low2,306 (90.8%)
Condition Assessment
Satisfactory9 (0.4%)
Fair41 (1.6%)
Poor / Unsatisfactory34 (1.3%)
Not Rated2,457 (96.7%)
Federal
158
State
171
Local
84
Private
2,125
Tallest Dams
- Grizzly Gulch Tailings Dam380 ft
- Oahe Dam245 ft
- Big Bend Dam205 ft
- Angostura Dam193 ft
- Deerfield Dam171 ft
High Hazard Dams
- Grizzly Gulch Tailings DamHigh
- Oahe DamHigh
- Big Bend DamHigh
- Angostura DamHigh
- Deerfield DamHigh
Poor Condition Dams
- OglalaUnsatisfactory
- MarindahlPoor
- Crow CreekPoor
- RichmondPoor
- Ghost HawkUnsatisfactory
All Dams in South Dakota
Showing 1726–1750 of 2,306
| Dam Name | Height (ft) | Year | Hazard | Condition |
|---|---|---|---|---|
| Samuelson Bros. No.2 Meade County | 21 | 1954 | Low | Not Rated |
| Samuelson Bros. No.4 Meade County | 15 | 1960 | Low | Not Rated |
| Samuelson Dam Meade County | 28 | 1962 | Low | Not Rated |
| Samuelson Dam #2 Meade County | 27 | 1999 | Low | Not Rated |
| Sanders Dam Meade County | 29 | 1937 | Low | Not Rated |
| Sanderson Number 1 Jones County | 25 | 1951 | Low | Not Rated |
| Sanderson Number 2 Jones County | 25 | 1955 | Low | Not Rated |
| Sanderson Number 3 Jones County | 21 | 1952 | Low | Not Rated |
| Sandoz Dam Fall River County | 21 | 1937 | Low | Not Rated |
| Sandy Number 1 Jones County | 27 | 1969 | Low | Not Rated |
| Sandy Number 2 Jones County | 26 | 1956 | Low | Not Rated |
| Sargent Dam Ziebach County | 20 | 1937 | Low | Not Rated |
| Sargent Irrigation Dam Tripp County | 67 | 1972 | Low | Not Rated |
| Saucerman Dam Haakon County | 40 | 1974 | Low | Not Rated |
| Saville Number 1 Jones County | 25 | 1953 | Low | Not Rated |
| S. Baxter No. 1 Meade County | 21 | 1962 | Low | Not Rated |
| Scharman Dam Bennett County | 14 | 1950 | Low | Not Rated |
| Schaur Dam Harding County | 20 | 1949 | Low | Not Rated |
| Schaur Dam Brule County | 20 | 1947 | Low | Not Rated |
| Schillingstad-Scholzen Walworth County | 45 | 1965 | Low | Not Rated |
| Schindler Dam Lyman County | 16 | 2010 | Low | Not Rated |
| Schmidt #2 Mellette County | 15 | 1950 | Low | Not Rated |
| Schmidt Rd No.1 Mellette County | 26 | 1963 | Low | Not Rated |
| Schnose Dam No.1 Custer County | 14 | 1945 | Low | Not Rated |
| Schnose Dam No.2 Custer County | 15 | 1947 | Low | Not Rated |
Data sourced from the National Inventory of Dams (NID). Hazard classification reflects potential consequences of failure, not the likelihood of failure.